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Bacchi A, Baratta W, Calderazzo F, et al. Coordination of cyclo-octasulfur and cyclo-heptaselenium to dinuclear rhenium(I) systems. Inorg Chem. 2002;41(15):3894-900doi: 10.1021/ic025570+.
Bacchi, A., Baratta, W., Calderazzo, F., Marchetti, F., & Pelizzi, G. (2002). Coordination of cyclo-octasulfur and cyclo-heptaselenium to dinuclear rhenium(I) systems. Inorganic chemistry, 41(15), 3894-900. https://doi.org/10.1021/ic025570+
Bacchi, Alessia, et al. "Coordination of cyclo-octasulfur and cyclo-heptaselenium to dinuclear rhenium(I) systems." Inorganic chemistry vol. 41,15 (2002): 3894-900. doi: https://doi.org/10.1021/ic025570+
Bacchi A, Baratta W, Calderazzo F, Marchetti F, Pelizzi G. Coordination of cyclo-octasulfur and cyclo-heptaselenium to dinuclear rhenium(I) systems. Inorg Chem. 2002 Jul 29;41(15):3894-900. doi: 10.1021/ic025570+. PMID: 12132913.
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Inorg Chem. 2002 Jul 29;41(15):3894-900. doi: 10.1021/ic025570+.

Coordination of cyclo-octasulfur and cyclo-heptaselenium to dinuclear rhenium(I) systems.

Inorganic chemistry

Alessia Bacchi, Walter Baratta, Fausto Calderazzo, Fabio Marchetti, Giancarlo Pelizzi

Affiliations

  1. Dipartimento di Chimica Generale ed Inorganica, Università di Parma, Via delle Scienze, I-44100 Parma, Italy. [email protected]

PMID: 12132913 DOI: 10.1021/ic025570+

Abstract

By substitution reactions of the coordinated THF ligands of Re(2)(mu-X)(2)(CO)(6)(THF)(2) by elemental chalcogens (S(8) and red selenium), the complexes Re(2)(mu-X)(2)(CO)(6)(S(8)) (X = Br, 1; I, 2), and Re(2)(mu-X)(2)(CO)(6)(Se(7)), (X = I, 3; Br, 4) have been prepared. Binuclear compound 3 was crystallographically established to be a coordination compound of cyclo-heptaselenium, two adjacent selenium atoms of the Se(7) ligand [Se-Se distance, 2.558(3) A] being bonded to rhenium(I), at an average Re-Se distance of 2.586(3) A, and the nonbonding Re.Re distance being 4.077(3) A. Spectroscopic evidence of the existence of these chalcogen complexes in solution is reported. The Re(2)(mu-X)(2)(CO)(6)(S(8)) complexes undergo S(8) displacement by THF, while the coordinated Se(7) moiety is less readily displaced from 3.

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